*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

:root {
  --bg: #08090d;
  --bg-2: #0d0f15;
  --surface: #12151d;
  --surface-2: #171b25;
  --line: #232936;
  --line-soft: #1b202a;
  --text: #e9edf5;
  --muted: #8d97ab;
  --dim: #626c80;
  --lime: #c6ff3d;
  --lime-dim: #8fbe1f;
  --violet: #7c5cff;
  --cyan: #34d3e0;
  --rose: #ff5d7a;
  --amber: #ffb545;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 24px 60px -20px rgba(0,0,0,.8);
  --font: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4 { margin: 0; font-weight: 700; letter-spacing: -.02em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.mono { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }

/* ---------- auth ---------- */
.auth {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
}
.auth-art {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 600px at 15% 10%, rgba(124,92,255,.28), transparent 60%),
    radial-gradient(700px 500px at 80% 80%, rgba(198,255,61,.18), transparent 60%),
    linear-gradient(160deg, #0b0d13, #060709);
  padding: 46px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.auth-art::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(700px 700px at 30% 40%, #000, transparent 75%);
}
.auth-art > * { position: relative; z-index: 1; }
.auth-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--lime); font-weight: 700;
}
.auth-hero { font-size: clamp(34px, 4.2vw, 62px); line-height: 1.02; max-width: 12ch; }
.auth-hero em { font-style: normal; color: var(--lime); }
.auth-sub { color: var(--muted); max-width: 42ch; margin-top: 18px; font-size: 17px; }
.auth-stats { display: flex; gap: 40px; }
.auth-stat b { display: block; font-size: 30px; letter-spacing: -.03em; }
.auth-stat span { color: var(--dim); font-size: 13px; }

.auth-panel {
  background: var(--bg-2);
  border-left: 1px solid var(--line);
  padding: 46px;
  display: flex; align-items: center; justify-content: center;
}
.auth-card { width: 100%; max-width: 380px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: -.03em; }
.brand-dot { width: 11px; height: 11px; background: var(--lime); border-radius: 3px; }

.role-tabs { display: grid; grid-template-columns: repeat(3,1fr); gap: 6px; background: var(--surface); padding: 5px; border-radius: 12px; border: 1px solid var(--line); margin: 26px 0 22px; }
.role-tab { padding: 9px 6px; border-radius: 8px; font-size: 13px; font-weight: 600; color: var(--muted); transition: .15s; }
.role-tab[aria-selected="true"] { background: var(--surface-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line); }
.role-tab:hover { color: var(--text); }

.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 6px; letter-spacing: .02em; }
.input, select.input, textarea.input {
  width: 100%; padding: 11px 13px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); outline: none; transition: .15s;
}
.input:focus { border-color: var(--lime-dim); box-shadow: 0 0 0 3px rgba(198,255,61,.12); }
select.input { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 16px; border-radius: var(--radius-sm); font-weight: 600; font-size: 14px; transition: .15s; border: 1px solid transparent; white-space: nowrap; }
.btn-primary { background: var(--lime); color: #10130a; }
.btn-primary:hover { background: #d4ff63; }
.btn-ghost { background: var(--surface); border-color: var(--line); color: var(--text); }
.btn-ghost:hover { background: var(--surface-2); }
.btn-danger { background: rgba(255,93,122,.12); border-color: rgba(255,93,122,.35); color: var(--rose); }
.btn-block { width: 100%; }
.btn-sm { padding: 6px 11px; font-size: 13px; }

.demo-box { margin-top: 20px; padding: 13px; border: 1px dashed var(--line); border-radius: var(--radius-sm); background: rgba(198,255,61,.03); }
.demo-box h5 { margin: 0 0 8px; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--lime); }
.demo-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 4px 0; font-size: 13px; color: var(--muted); }
.demo-row b { color: var(--text); font-weight: 500; }
.demo-row button { color: var(--lime); font-size: 12px; font-weight: 600; }
.auth-note { color: var(--dim); font-size: 12px; margin-top: 16px; text-align: center; }

/* ---------- shell ---------- */
.shell { display: grid; grid-template-columns: 244px 1fr; min-height: 100vh; }
.side { background: var(--bg-2); border-right: 1px solid var(--line); padding: 20px 14px; display: flex; flex-direction: column; gap: 22px; position: sticky; top: 0; height: 100vh; }
.side-brand { padding: 4px 8px 0; }
.role-pill { display: inline-block; margin-top: 8px; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; font-weight: 700; padding: 3px 8px; border-radius: 999px; }
.role-admin { background: rgba(124,92,255,.16); color: #a693ff; }
.role-trainer { background: rgba(198,255,61,.14); color: var(--lime); }
.role-client { background: rgba(52,211,224,.14); color: var(--cyan); }

.nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-label { font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); padding: 12px 10px 6px; font-weight: 700; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 9px; color: var(--muted); font-weight: 500; font-size: 14px; transition: .13s; }
.nav-item:hover { background: var(--surface); color: var(--text); }
.nav-item.active { background: var(--surface-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line); }
.nav-item.active .ico { color: var(--lime); }
.ico { width: 17px; text-align: center; opacity: .9; }
.nav-badge { margin-left: auto; font-size: 11px; background: var(--surface-2); border: 1px solid var(--line); padding: 1px 7px; border-radius: 999px; color: var(--muted); }

.side-user { border-top: 1px solid var(--line-soft); padding-top: 14px; display: flex; align-items: center; gap: 10px; }
.side-user .meta { min-width: 0; flex: 1; }
.side-user .meta b { display: block; font-size: 13px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.side-user .meta span { font-size: 11px; color: var(--dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: block; }

.main { min-width: 0; display: flex; flex-direction: column; }
.topbar { display: flex; align-items: center; gap: 16px; padding: 18px 28px; border-bottom: 1px solid var(--line); background: rgba(8,9,13,.82); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 20; }
.topbar h1 { font-size: 21px; }
.topbar .sub { color: var(--dim); font-size: 13px; }
.topbar .spacer { flex: 1; }
.search { display: flex; align-items: center; gap: 8px; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 7px 14px; width: 260px; }
.search input { background: none; border: 0; outline: none; width: 100%; font-size: 13px; }
.page { padding: 24px 28px 60px; display: flex; flex-direction: column; gap: 22px; }

/* ---------- primitives ---------- */
.avatar { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-size: 12.5px; font-weight: 700; color: #0a0c10; flex: none; }
.avatar-lg { width: 52px; height: 52px; border-radius: 14px; font-size: 17px; }
.avatar-sm { width: 26px; height: 26px; border-radius: 8px; font-size: 10.5px; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.card-pad { padding: 18px; }
.card-head { display: flex; align-items: center; gap: 12px; padding: 15px 18px; border-bottom: 1px solid var(--line-soft); }
.card-head h3 { font-size: 15px; }
.card-head .spacer { flex: 1; }
.card-head .hint { color: var(--dim); font-size: 12px; }

.grid { display: grid; gap: 16px; }
.g-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.g-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.g-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.g-21 { grid-template-columns: 2fr 1fr; }
.g-12 { grid-template-columns: 1fr 2fr; }
@media (max-width: 1180px) { .g-4 { grid-template-columns: repeat(2,minmax(0,1fr)); } .g-3, .g-21, .g-12 { grid-template-columns: 1fr; } }
@media (max-width: 860px) { .g-2, .g-4 { grid-template-columns: 1fr; } .shell { grid-template-columns: 1fr; } .side { display: none; } .auth { grid-template-columns: 1fr; } .auth-art { display: none; } }

.stat { padding: 16px 18px; }
.stat .k { color: var(--dim); font-size: 12px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.stat .v { font-size: 30px; font-weight: 700; letter-spacing: -.03em; margin-top: 6px; }
.stat .d { font-size: 12.5px; margin-top: 4px; color: var(--muted); }
.up { color: var(--lime); } .down { color: var(--rose); }

.tag { display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px; font-weight: 600; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); background: var(--surface-2); white-space: nowrap; }
.tag-lime { color: var(--lime); border-color: rgba(198,255,61,.28); background: rgba(198,255,61,.09); }
.tag-violet { color: #a693ff; border-color: rgba(124,92,255,.3); background: rgba(124,92,255,.1); }
.tag-cyan { color: var(--cyan); border-color: rgba(52,211,224,.3); background: rgba(52,211,224,.1); }
.tag-rose { color: var(--rose); border-color: rgba(255,93,122,.3); background: rgba(255,93,122,.1); }
.tag-amber { color: var(--amber); border-color: rgba(255,181,69,.3); background: rgba(255,181,69,.1); }

table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--dim); font-weight: 700; padding: 10px 18px; border-bottom: 1px solid var(--line-soft); }
td { padding: 12px 18px; border-bottom: 1px solid var(--line-soft); font-size: 14px; vertical-align: middle; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr.clickable:hover { background: var(--surface-2); cursor: pointer; }
.cell-user { display: flex; align-items: center; gap: 10px; }
.cell-user b { font-weight: 600; display: block; }
.cell-user span { font-size: 12px; color: var(--dim); }

.bar { height: 6px; border-radius: 999px; background: var(--surface-2); overflow: hidden; box-shadow: inset 0 0 0 1px var(--line-soft); }
.bar > i { display: block; height: 100%; border-radius: 999px; background: var(--lime); }

.list-row { display: flex; align-items: center; gap: 12px; padding: 12px 18px; border-bottom: 1px solid var(--line-soft); }
.list-row:last-child { border-bottom: 0; }
.list-row .spacer { flex: 1; }
.list-row b { font-weight: 600; }
.list-row small { color: var(--dim); font-size: 12px; }

.empty { padding: 40px; text-align: center; color: var(--dim); font-size: 14px; }

/* schedule */
.week { display: grid; grid-template-columns: 58px repeat(7, minmax(0,1fr)); }
.week-head { padding: 10px 6px; text-align: center; border-bottom: 1px solid var(--line-soft); font-size: 12px; color: var(--muted); }
.week-head b { display: block; font-size: 17px; color: var(--text); letter-spacing: -.02em; }
.week-head.today b { color: var(--lime); }
.week-hour { font-size: 11px; color: var(--dim); padding: 4px 8px; text-align: right; border-right: 1px solid var(--line-soft); }
.week-cell { border-right: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); min-height: 46px; padding: 3px; }
.week-cell:nth-child(8n+1) { border-right: 0; }
.evt { border-radius: 7px; padding: 5px 7px; font-size: 11.5px; line-height: 1.25; background: rgba(198,255,61,.1); border: 1px solid rgba(198,255,61,.26); color: #dff9a4; cursor: pointer; }
.evt b { display: block; font-weight: 600; color: var(--text); font-size: 11.5px; }
.evt.v { background: rgba(124,92,255,.12); border-color: rgba(124,92,255,.3); color: #c3b6ff; }
.evt.c { background: rgba(52,211,224,.1); border-color: rgba(52,211,224,.28); color: #a5eef4; }
.evt.done { opacity: .5; }

/* modal + drawer */
.overlay { position: fixed; inset: 0; background: rgba(4,5,8,.72); backdrop-filter: blur(3px); z-index: 60; display: flex; }
.modal { margin: auto; width: min(620px, 92vw); max-height: 88vh; overflow: auto; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
.drawer { margin-left: auto; width: min(560px, 96vw); height: 100vh; overflow: auto; background: var(--bg-2); border-left: 1px solid var(--line); box-shadow: var(--shadow); }
.modal-head { display: flex; align-items: center; gap: 12px; padding: 18px 20px; border-bottom: 1px solid var(--line-soft); position: sticky; top: 0; background: inherit; z-index: 2; }
.modal-head h3 { font-size: 17px; }
.modal-head .spacer { flex: 1; }
.modal-body { padding: 20px; display: flex; flex-direction: column; gap: 16px; }
.modal-foot { display: flex; gap: 10px; justify-content: flex-end; padding: 16px 20px; border-top: 1px solid var(--line-soft); position: sticky; bottom: 0; background: inherit; }
.x { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; color: var(--muted); font-size: 17px; }
.x:hover { background: var(--surface-2); color: var(--text); }

/* toast */
#toast-root { position: fixed; right: 22px; bottom: 22px; z-index: 90; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--surface-2); border: 1px solid var(--line); border-left: 3px solid var(--lime); border-radius: 10px; padding: 11px 15px; font-size: 13.5px; box-shadow: var(--shadow); animation: pop .22s ease-out; }
@keyframes pop { from { opacity: 0; transform: translateY(8px); } }

/* misc */
.seg { display: inline-flex; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 3px; gap: 3px; }
.seg button { padding: 5px 12px; border-radius: 7px; font-size: 13px; font-weight: 600; color: var(--muted); }
.seg button.on { background: var(--surface-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line); }

.ring { display: grid; place-items: center; position: relative; }
.ring b { position: absolute; font-size: 20px; font-weight: 700; letter-spacing: -.02em; }
.ring small { position: absolute; margin-top: 34px; font-size: 11px; color: var(--dim); }

.check { display: flex; align-items: center; gap: 12px; padding: 11px 18px; border-bottom: 1px solid var(--line-soft); }
.check:last-child { border-bottom: 0; }
.check input { appearance: none; width: 19px; height: 19px; border-radius: 6px; border: 1.5px solid var(--line); background: var(--surface-2); display: grid; place-items: center; cursor: pointer; flex: none; }
.check input:checked { background: var(--lime); border-color: var(--lime); }
.check input:checked::after { content: "✓"; color: #10130a; font-size: 12px; font-weight: 800; }
.check.on b { text-decoration: line-through; color: var(--dim); }
.check .spacer { flex: 1; }

.kv { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line-soft); font-size: 13.5px; }
.kv:last-child { border-bottom: 0; }
.kv span { color: var(--muted); }
.kv b { font-weight: 600; }

.chip-row { display: flex; flex-wrap: wrap; gap: 7px; }
.hr { height: 1px; background: var(--line-soft); }
.stack { display: flex; flex-direction: column; gap: 16px; }
.row { display: flex; align-items: center; gap: 10px; }
.wrap { flex-wrap: wrap; }
.muted { color: var(--muted); }
.dim { color: var(--dim); }
.sm { font-size: 13px; }
.xs { font-size: 12px; }
.b { font-weight: 600; }
.right { margin-left: auto; }